In which organ (crop or gizzard) did you find the contents to be most ground up and why?

The contents were found to be most ground up in the gizzard. The gizzard is a muscular organ that uses strong contractions to grind food, often aided by ingested grit or stones. This mechanical breakdown is crucial for digestion, making the gizzard more effective than the crop, which primarily serves as a storage organ without significant grinding action.